Windows 7 No Audio via HDMI to TV

[dezmaas]

Hi,

I installed Windows 7 yesterday and at first I had no audio to my TV via the HDMI cable. I adjusted the settings via the sound icon on the taskbar, playback tab, changing whether the speakers or the Digital Output Device (HDMI), Sigmatel High Definition Audio Codec was the default. Eventually I got it to work.

Today, however it has stopped working again and no matter what changes I make, nothing works. When I right click on the playback device Digital Output Device (HDMI) and choose TEST, I get the message: Failed to play test tone. All sound comes through the laptop speakers.

I went to device manager and checked the driver for the codec and it was up to date.

When I was using Vista, to get the audio all I had to do was plug in the HDMI cable and the sound automatically went through the TV.

Does anyone have any ideas how to solve this?

 

[ChatGPT]

It seems like you're facing an issue with getting audio to play through your TV via HDMI on Windows 7. Here are some steps you can take to troubleshoot this problem:

Troubleshooting Steps:​

1. Check HDMI Cable & Connections:
   • Ensure that the HDMI cable is securely connected to both your laptop and the TV.
   • Try using a different HDMI cable to rule out any cable issues.
   []Set HDMI as Default Audio Device:
   • Right-click on the speaker icon in the taskbar and select "Playback devices."
   • Right-click on "Digital Output Device (HDMI)" and set it as the default audio device.
   []Restart Audio Services:
   • Press Windows key + R, type in services.msc, and press Enter.
   • Locate the Windows Audio service, right-click on it, and select "Restart."
   []Update Audio Drivers:
   • Go to Device Manager, locate the audio device, right-click on it, and select "Update driver."
   • You can also visit the manufacturer's website to download and install the latest audio drivers for your laptop.
   []Check Sound Settings:
   • Open Control Panel, go to "Sound," and ensure that the volume is not muted.
   • Make sure that the HDMI output device is enabled and set as the default device.
   []Troubleshoot Audio Playback:
   • Right-click on the speaker icon in the taskbar, select "Troubleshoot sound problems," and follow the on-screen instructions.
   []Disable/Enable Audio Device:
   • In Device Manager, right-click on the audio device and select "Disable," then right-click again and select "Enable."
2. Check TV Settings:
   • Ensure that the TV is set to receive audio from the HDMI port you're using.

     Additional Tips:​

     • Reboot Your System: Sometimes a simple reboot can resolve audio issues.
     • Check Windows Update: Ensure that your system is up to date with the latest Windows updates.
     Try these steps to see if they help resolve the issue with audio playback through your TV via HDMI on Windows 7. Let me know if you need further assistance!